Perhaps you should try some spelling variations:
credit training » credit trading, credit rationing, credit rating
training cost » training costs, training course, training courses
maya idea » main idea
cost hong » cost housing
dong bin » dong sin, dong di, dann bin
hong shu » cong shu, tong shui, wong shiu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong bin) or (wang hyoung)) ((ya idea) OR (maya idea)) credit training cost hong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong bin) OR (wang hyoung)) ((ya idea) OR (maya idea)) credit training cost hong shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong bin) or (wang hyoung)) ((ya idea) OR (maya idea)) credit training cost hong shu ;*".